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參數(shù)資料
| 型號： | PEX8632-AARDK |
| 廠商： | PLX Technology, Inc. |
| 英文描述： | PCIe Gen2, 5.0GT/s 32-lane, 12-port Switch |
| 中文描述： | 的PCIe Gen2，5.0GT / s的32通道，12端口交換機 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 209K |
| 代理商： | PEX8632-AARDK |
Preliminary - PLX Confidential
Backwards Compatibility with PCIe Gen1
The PEX 8632 enables a PCIe Gen2 native chipset to
create PCIe Gen1 (2.5 Gbps) slots and/or communicate
with PCIe Gen1 endpoints. The PEX 8632 is backwards
compatible with PCIe Gen1 devices and will
automatically negotiate down to Gen1 bit-rates (2.5
Gpbs) when connected to a Gen1 endpoint. In Figure 3,
the PCIe slots connected to the PEX 8632’s downstream
ports can be populated with either PCIe Gen1 or PCIe
Gen 2 devices. Conversely, the PEX 8632 can be used to
create Gen 2 slots on a Gen 1 native Chip Set in the
same fashion.
CPU
CPU
CPU
CPU
x8
Four x4 Gen1 slots
Graphics Slot
PEX 8632
Endpoint
x16
Memory
Endpoint
Chipset
Gen2
x4
x4
Figure 4. Creating PCIe Gen1 Slots
Backplane Communication
The PEX 8632 is also well suited for backplane
applications demanding a large number of ports. Figure
5 represents an ATCA or MicroTCA backplane
application with two switch fabric blades and multiple
AMC blades. In this example, two PEX 8632s provide
peer-to-peer data exchange for up to 20 AMC blades
connecting to the switch fabric. The PEX 8632 utilizes
its NT port to isolate the hosts on the switch fabrics and
the remaining 10 downstream ports on each switch are
used to fan-out to the 20 AMC blades (or 10 AMC
Carrier Modules).
20 AMC Blades
Fabric
To
Backplane
To other
Fabric
PEX 8632
PEX 8632
NT
CPU
Figure 5. ATCA/MicroTCA Backplane Usage
Failover Storage Systems with Dual Cast
The PEX 8632’s Dual Cast feature proves to be very
useful in storage systems. In the example shown in
Figure 6, the Dual Cast feature enables the PEX 8632 to
copy data coming from the host to two downstream ports
(see yellow traffic patterns) in one transaction as
opposed to having to execute two separate transactions
to send data to the redundant chassis. By offloading the
task of backing up data onto the secondary system,
processor and system performance is enhanced. The
PEX 8632’s NT port is used to isolate the backup system
from the primary system.
x8
CPU
CPU
CPU
CPU
Memory
Chipset
CPU
CPU
CPU
CPU
PEX 8632
x8
PEX 8632
x8
NT
Memory
Chipset
8 Disk Chassis
PEX 8616
x4
8 Disk Chassis
Figure 6. Dual Cast in Storage Systems
FC
Control
FC
Control
FC
Control
FC
Control
NT
PEX 8616
x4
NT
x8
x8
x8
x8
x4
x4
Backup
System
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PEX8648 | PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
| PEX8648-AA50BCG | PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
| PEX8648-AARDK | PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
| PF0348 | 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; No of Pins: 8; Temperature Range: -40°C to +85°C |
| PF0349 | 4.5A, 500kHz Step-Down Switching Regulator; Package: SO; No of Pins: 8; Temperature Range: -40°C to +85°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PEX8632-BB50BIF | 功能描述:外圍驅(qū)動器與原件 - PCI 32 Lane, 12 Port PCI Express Gen 2 Switch RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PEX8636-16U1DBBRDK | 功能描述:界面開發(fā)工具 PEX8636-16U1D Basbrd RDK(x16 Up,20 x1 Dn) RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| PEX8636-AA50BCF | 功能描述:外圍驅(qū)動器與原件 - PCI 36 Lane, 24 Port PCI Express Gen 2 Switch RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| PEX8648 | 制造商:PLX 制造商全稱:PLX 功能描述:PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
| PEX8648-AA50BCG | 制造商:PLX 制造商全稱:PLX 功能描述:PCIe Gen2, 5.0GT/s 48-lane, 12-port PCIe Switch |
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